Who hasn’t found himself in the situation where his car doesn’t start one morning on the way to work? If it never happened to you , at minimum you’ve already had that apprehension. So when you find out an alternator noise on Fiat 500, you can already imagine yourself breaking down, stuck waiting for the tow truck. That’s why our team has decided to write this content to help you find the sources of alternator sounds. In this article, you will first learn the role and functions of the alternator in your Fiat 500 and then what the causes and solutions to alternator noise on Fiat 500 may be.alternator-noise-fiat-500

Role and alternator operation Fiat 500

Alternator role

Your alternator is an important part of your Fiat 500. In fact, its mission is to generate power to your entire electrical system: headlights, interior lighting, signalling, computer… It will have the task of recharging the battery once the car is in motion, to provide power to the car in motion and to let you to always have a sufficient energy source to be able to restart the next time.

Alternator functioning

The alternator functions on an electrical principle that has been used for decades, the concept of copper coil wound around a magnet . This coil while spinning makes electricity. It is the engine motor itself that will provide the energy requested by the alternator to produce the energy, via the accessory belt or alternator belt. When your Fiat 500 engine stops, the battery takes over to provide the car with energy.

What are the different alternator noises or sounds on my Fiat 500 and what are the causes?

I hear a knocking noise from the alternator of my Fiat 500

One of the characteristic noises of a tired alternator on Fiat 500 is a knocking noise. This alternator sound on Fiat 500 will most of the time appear when your engine is idling, it can be linked to voltage drops that could disrupt the normal operation of electrical components such as headlights for example. Most often, it is a of both bearings of the alternator that is defective, to verify it, use a multimeter on the terminals of your car with the engine running and you must obtain a value between 12 and 14.7 volts, which means that your alternator is recharging your battery well. If the value is lower, the alternator of your Fiat 500 is tired and you should consider changing the bearing if it is the only reason otherwise the whole part.

I find out a grinding noise coming from the alternator of my Fiat 500

If you are in the case where the alternator of your Fiat 500 causes grinding sounds, in this case you will have to look at it more seriously. This sign can testify as for the knocking sound of a tired bearing, however , usually, we often see by looking more carefully that it is the accessory belt that is loosened or worn and is therefore the reason of it. In this case, we advise that you look for advice this content to find all the necessary details to solve an accessory belt noise on Fiat 500.

I find out a loud noise from the alternator of my Fiat 500

Listening a loud noise from the alternator of your Fiat 500 is quite regular, in fact, it produces an audible sound when producing the electrical pulses it generates. It is up to you to verify that the battery indicator light on your dashboard does not show up, and that you do not have a voltage drop when your engine is running (headlight or dashboard light that jumps for example. If this noise is too loud, we advise that you go to this content to find other ways to solve problem of noises from front end on Fiat 500.